US Bridges

TR 123 over Little Indian Creek

Poor

LaSalle County, Illinois · N 41st E 2110 · Structure no. 050310800000000

Built
1962
63 years old
Condition
Poor
inspected July 2023
Type
Channel Beam
Concrete
Length
74 ft
2 main spans
Daily traffic
175
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 123 over Little Indian Creek is a concrete channel beam carrying TR 123 over Little Indian Creek in LaSalle County, Illinois. It was built in 1962, so it is 63 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 175 vehicles a day, roughly 11% of them trucks, projected to reach 177 by 2046. The structure is 74 ft (22.6 m) long and 23 ft wide.

CarriesTR 123
CrossesLittle Indian Creek
LocationN 41st E 2110
RouteCounty Highway 0
Coordinates41.52894, -88.76438
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.2 US tons
Inventory rating31.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 15
Structure length74 ft (22.6 m)
Longest span36 ft (11 m)
Deck width23 ft (6.9 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2020)
Projected traffic177 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 123 over Little Indian Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is TR 123 over Little Indian Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.

How much traffic does TR 123 over Little Indian Creek carry?

About 175 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is TR 123 over Little Indian Creek?

The structure is 74 ft (22.6 m) long with a longest span of 36 ft (11 m) and a deck 23 ft wide.

Who owns TR 123 over Little Indian Creek?

It is owned by the Town or Township Highway Agency.